* {
  margin: 0;
  padding: 0;
  list-style: npne;
}
.box {
  width: 800px;
  margin: auto;
  background: skyblue;
}
.disable {
  cursor: not-allowed;
  color: gray;
}
p {
  width: 300px;
  height: 100px;
  margin: auto;
  font-size: 30px;
  line-height: 100px;
  text-align: center;
}
.btns {
  text-align: center;
}
button {
  width: 100px;
  margin: 20px;
  height: 50px;
  color: white;
  border-radius: 25px;
  background-size: cover;
}
button:active {
  transform: scale(0.8);
}